nx_hull_mesh.nx

nx_hull_mesh.nx -- THE JOIN: silhouettes -> carved SDF field -> triangle mesh -> rendered PNG. nx_visual_hull (carve) and nx_isosurf (polygonize) were each gated in ISOLATION, and a gated half plus a gated half is not a proven whole. This organ is the composition, and it exists so the image->geometry->render path is proven end-to-end BEFORE any real photograph arrives. Runs on SYNTHETIC silhouettes by default (a plus-shaped column: distinctive enough that a correct carve is visually unmistakable and a wrong axis mapping is obvious). Give it two image paths and it carves those instead -- same code path, so the synthetic proof is not a separate lane. ⚠VIEWS MUST DIFFER IN ANGLE. Front + lateral carves a form; front + BACK does not (same projection axis, one constraint). nx_visual_hull_gate proves that mechanically. usage: nx_hull_mesh <out.png> [cell] [gridN] license_tier: ORIGINAL expect_exit: 0